11111...11117 (131-digits)

This number is a prime.

         1 1111111111 1111111111 1111111111 1111111111 1111111111 1111111111
1111111111 1111111111 1111111111 1111111111 1111111111 1111111111 1111111117

+ The smallest near-repdigit prime P greater than a googol found in the sequence 7, 17, 117, 1117, 11117, 111117, etc. Curiously, the sod(P)is also prime . [Bajpai]

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell